期刊
ACS NANO
卷 5, 期 2, 页码 1047-1055出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn102579f
关键词
graphene; monolayer; secondary electron emission; secondary electron yield; scanning electron microscopy
类别
资金
- EPSRC [EP/H001972/1, EP/F048009/1]
- Glasstone Fund
- Brasenose College
- EPSRC [EP/H001972/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H001972/1] Funding Source: researchfish
In order to ensure that vacuum electronic devices work with high overall efficiency, it is required to use materials with low secondary electron emission to fabricate or coat collectors, grids, and envelope walls of the devices. We report that the secondary electron yields of monolayer graphenes are ultralow, comparable with the lowest yields of the materials currently used In this practical application. This offers a pathway for the application of light graphene with only one-atom thickness and good electronic and thermal conductivities in vacuum electronic devices.
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